CVE-2021-0374 : Exploit Details and Defense Strategies

This article provides an overview of CVE-2021-0374, a vulnerability found in Android-11 that could lead to local information disclosure. Learn about the impact, technical details, and mitigation strategies related to this CVE.

Understanding CVE-2021-0374

In BnAudioPolicyService::onTransact of IAudioPolicyService.cpp, there is a possible out of bounds read leading to local information disclosure.

What is CVE-2021-0374?

CVE-2021-0374 is a vulnerability in Android-11 that allows for local information disclosure without the need for user interaction.

The Impact of CVE-2021-0374

This vulnerability could potentially expose sensitive information locally, requiring system execution privileges for exploitation.

Technical Details of CVE-2021-0374

The vulnerability exists in BnAudioPolicyService::onTransact of IAudioPolicyService.cpp, allowing an out of bounds read without proper checks.

Vulnerability Description

The issue arises from a missing bounds check, which can be exploited for local information disclosure.

Affected Systems and Versions

Android-11 is the affected version by this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability does not require user interaction, making it a serious security concern.

Mitigation and Prevention

It's crucial to take immediate steps and follow long-term security practices to mitigate the risks posed by CVE-2021-0374.

Immediate Steps to Take

Ensure systems running Android-11 are updated with the latest security patches to address this vulnerability.

Long-Term Security Practices

Implement strict security controls, conduct regular vulnerability assessments, and stay informed about security bulletins for ongoing protection.

Patching and Updates

Stay proactive in applying security patches released by Android to safeguard against potential exploits.